Draft-hook.



E. w. MARVIN.

DRAFT HO0K APPLICATION FILED NOV-25,1912.

Patented Dec. 26, 1916.

IITTOHNEV "responding parts in EDWARD w. MARVIN, or BROOKLYN, new YonK,"BnooKL rn, nnw

[0 aZZ'w/tomit may concern: a j Be it known that I, ED ARD "WM MARVIN,

a cit zen of the United States, and a resident of Brooklyn, county of;Kings, and-,State of and, in Draft- Hooks, of

have invented certain new useful Improvements which the following is aspecification, reference being had to the accompanying drawings, forminga part thereof.

ly invention relates to draft hooks and it has for its object to providea device of this character that shall be simple and durable inconstruction and adaptedto support a load many times greater than thatwhich can be sustained by devices of the same size and general characterhitherto constructed.

I will describe my lowing specification and point out the novel featuresthereof in appended claims.

igures 1 and 2 are elevations at right angles to each other of acombined hook and sheave block which is constructed in accordance withmy invention, the hooks being open in Fig. l and closed in Fig. 2.

Like characters of reference designate corall the figures. eferring toFigs. 1 and 2 of the drawthe structure hook in the form of a metalclevis 35 which is the supporting member. One of the ends of this clevisforms an engaging arm 36. Its other end terminates in a laterallytending comprises another hook to the clevis. A sheave or pulley 39 maybe supported between \the arms of the clevis, and if desired a sheaveblock 40 may be provided which covers the clevis and partially inclosesthe sheave.

he sheave is pivotally mounted on a bolt 41 which extends laterallythrough the arms of the clevis and the sheave block as shown in Fig. l.The sheave block comprises a pair of oval side members pair of endspacing blocks side block 43 is divided and is secured to a projection47 The upper end of the vided with a hole 48 w ceive the projection 37jection being provided ceive a cotterpin or wedge in order to hold thehook and clevis closed.

When the hook is open as shown in Fig. 1

member 38 pivoted 44 and 45. The its lower end 46 of the hook 38.projection 47 is prohich is adapted to reof the clevis, the prolnventionin the fol,

42 and 43 and a 49 to rea r Fhlhtllth Assmnfon TO J. roan.

- nann'r-rroo 1 Specification of rettersratent P t nt d m -25 1191Appli-cation filed November 25, 1912. stamens.

together of the hook areswung a rope or cable to be the sheave block.After the rope een inserted and the hook N f the block with theprojection 47 outwardly, permitting inserted in .asb

the lowe r jend a;

hooks may be adapted to receive a sheave block and sheave as shown inthe drawings, or they may be similar to each other.

ariations in size and arrangement of parts may be eifected within thespirit and scope of my invention.

What I claim is l. The combination with a sheaveblock projection at oneend and a laterally projecting lug at the other and a sheave rotatablymounted between the arms of the U-shaped frame, of a hook pivotallyconnected to the supporting member having a perforated projectionadapted to receive the lug of the frame when the hook the hook and theend of the supporting projection of th adapted to interlock whereby thesupporting member the load pivotal connection.

2. The combination witha sheave block comprising a U-shaped frame havinga hook supporting member with jection at one end and a laterally proecting hooks arranged on opposite sides of their connecting pivot, eachhaving a rigid sup- Gopiee' of this patent may be obtained for fivecents each, by addressing the porting pro ection adapted to interlockwith the end of the other hook, one of the hooks 15 being provided witha sheave block and sheave, the supporting projection of the other beingadapted to close the sheave block.

In witness whereof, I have hereunto set 20 21st day of EDWARD W. MARVIN.

my hand this November in the year 1912.

Witnesses:

WILLIAM J. 'MONTGOMERY, Enivns'r W. MARSHALL.

Gommissioner of Patents;

Washington, D. G.

